Fireball

This spell costs {1} more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

Wooden Sphere

Whenever a player casts a green spell, you may pay {1}. If you do, you gain 1 life.

Giant Growth

Target creature gets +3/+3 until end of turn.

Scryb Sprites

War Mammoth

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Shatter

Sol Ring

Getting

Mightstone

Urza's Tower

{T}: Add {C}. If you control an Urza's Mine and an Urza's Power-Plant, add {C}{C}{C} instead.

Urza's Mine

{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.

Kird Ape

This creature gets +1/+2 as long as you control a Forest.

Tranquility

Forcefield

{1}: The next time an unblocked creature of your choice would deal combat damage to you this turn, prevent all but 1 of that damage.

Fastbond

You may play any number of lands on each of your turns.
Whenever you play a land, if it wasn't the first land you played this turn, this enchantment deals 1 damage to you.

Urza's Power Plant

{T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead.

Mountain

Craw Wurm

Lure

Enchant creature
All creatures able to block enchanted creature do so.

Ley Druid

Icy Manipulator

{1}, {T}: Tap target artifact, creature, or land.

Llanowar Elves

Fire Elemental

Library of Alexandria

{T}: Add {C}.
{T}: Draw a card. Activate only if you have exactly seven cards in hand.

Wild Growth

Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional {G}.

Forest

Grizzly Bears

Red Elemental Blast

Choose one —
• Counter target blue spell.
• Destroy target blue permanent.